CN103438058B - The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine - Google Patents
The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine Download PDFInfo
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- CN103438058B CN103438058B CN201310384372.4A CN201310384372A CN103438058B CN 103438058 B CN103438058 B CN 103438058B CN 201310384372 A CN201310384372 A CN 201310384372A CN 103438058 B CN103438058 B CN 103438058B
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- turbine
- rotating shaft
- titanium aluminium
- thread
- 42crmo
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- 239000004411 aluminium Substances 0.000 title claims abstract description 76
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000010936 titanium Substances 0.000 title claims abstract description 76
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 76
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000956 alloy Substances 0.000 claims abstract description 53
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 49
- 230000007704 transition Effects 0.000 claims description 5
- 150000003608 titanium Chemical class 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 16
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 abstract description 15
- 238000013459 approach Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 229910004349 Ti-Al Inorganic materials 0.000 description 3
- 229910004692 Ti—Al Inorganic materials 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The present invention relates to a kind of thread interference locking linkage structure and connecting means of titanium aluminium rotating shaft of supercharger turbine, linkage structure comprises titanium aluminium turbine (2), 42CrMo alloy rotating shaft (1) and elastic cylinder safetied pin (3), there is outside thread described titanium aluminium turbine (2) end, from external thread rotary viewed from turbine end to identical with turbine wheel rotation direction; There is the internal thread with titanium aluminium turbine (2) end outside thread interference fit described 42CrMo alloy rotating shaft (1) end; The matching part of described titanium aluminium turbine (2) and 42CrMo alloy rotating shaft (1) has the pin hole assembled for the tight pin of elasticity cylinder lock (3), the axial angle of described pin hole and the rotating shaft of 42CrMo alloy is 15 °-30 °, being reliably connected lastingly between titanium-aluminium alloy booster turbine impeller with the rotating shaft of 42CrMo alloy can be realized, and manufacturing process simple, be easy to realize through engineering approaches, the join strength requirement of rotating shaft of supercharger turbine can be met.
Description
Technical field
The invention belongs to automobile-used turbocharging technology field, be specifically related to a kind of thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine.
Background technique
Turbine shaft is one of core component of vehicle turbocharger, is formed by connecting by turbine and rotating shaft.At present, the turbine of diesel engine for automobile turbosupercharger generally adopts cast nickel-base alloy K418 (this density of material is 8.0 × 10
3kg/m
3), rotating shaft adopts 42CrMo alloy steel material.For the rotating shaft that the booster turbine manufactured by K418 alloy and 42CrMo alloyed steel manufacture, friction-welding technique usually can be adopted to realize the reliable connection of turbine shaft.But because the density ratio of K418 alloy is comparatively large, the booster turbine rotary inertia manufactured by K418 alloy is also relatively large, causes the transient response of exhaust gas turbocharge motor poor, and the over-emitting black exhaust phenomenon of motor when starting and accelerate is serious.
For reducing the over-emitting black exhaust phenomenon when rotary inertia of turbocharger rotor, the transient response improving exhaust gas turbocharge motor, minimizing starting/acceleration, the cast ti al alloy material that vehicle supercharger turbine can adopt specific strength higher replaces K418 alloy.Because the density of titanium-aluminium alloy is only 3.87 × 10
3kg/m
3161GPa when Young's modulus is 500 DEG C, Ti-Al alloy material has again good high-temperature behavior and oxidation resistance simultaneously, with the booster turbine impeller that titanium-aluminium alloy manufactures, the rotary inertia of turbocharger rotor can not only be reduced, but also contribute to the aeroperformance improving turbine, reach the object improving turbosupercharged engine transient response, improve engine performance.But, because titanium-aluminium alloy belongs to intermetallic compounds, adopt conventional soldering method, be difficult to realize reliable connection of titanium aluminium turbine and the rotating shaft of 42CrMo alloy.
In the connection of titanium aluminium turbine and the rotating shaft of 42CrMo alloy, by the retrieval to disclosed technical data and patent both at home and abroad, find 3 relevant patent of invention altogether.Wherein, the patent No. is the connection that methods of this two patents proposition direct employing mechanical interference connection of 97125874.0 and 200810110548.6 realize between titanium-aluminum alloy turbine and the rotating shaft of 42CrMo alloy, but due to vehicle supercharger turbine and rotating shaft connection part operating temperature higher, and the fluctuation of pressurized machine working speed is comparatively large, the method directly adopting mechanical interference to connect will be difficult to the long time stability effectively ensureing titanium-aluminum alloy turbine and 42CrMo alloy rotating shaft join strength.The patent No. be 201310166758.8 patent interference thread and the anti-loosening connecting means that combines of pin and linkage structure are proposed, titanium-aluminum alloy turbine adopts internal thread, the rotating shaft of 42CrMo alloy adopts outside thread, pin hole parallels with the axis of turbine shaft, although this connecting means and linkage structure can realize reliable connection of titanium aluminium turbine shaft, but because the cutting ability of Ti-Al alloy material is poor, titanium-aluminum alloy turbine is easy to burst apart in the process of machining internal thread and machining accuracy is general not high, simultaneously, because rotating shaft of supercharger turbine is longer, larger with the pin hole difficulty of processing of turbine shaft axis being parallel.
Summary of the invention
The present invention is directed to the connectivity problem of titanium aluminium turbine that current Ti-Al alloy material faces in vehicle supercharger turbine application process and the rotating shaft of 42CrMo alloy, a kind of thread interference locking connecting means and linkage structure of titanium aluminium rotating shaft of supercharger turbine are proposed, titanium aluminium turbine can be realized reliably be connected with the lasting of 42CrMo alloy rotating shaft, meet the join strength requirement of titanium aluminium rotating shaft of supercharger turbine.
Technological scheme of the present invention:
A kind of thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine, comprise titanium aluminium turbine 2,42CrMo alloy rotating shaft 1 and elastic cylinder safetied pin 3, it is characterized in that: there is outside thread described titanium aluminium turbine 2 end, from external thread rotary viewed from turbine end to identical with turbine wheel rotation direction; There is the internal thread with titanium aluminium turbine 2 end outside thread interference fit described 42CrMo alloy rotating shaft 1 end; The matching part of described titanium aluminium turbine 2 and 42CrMo alloy rotating shaft 1 has the pin hole assembled for the tight pin 3 of elasticity cylinder lock, the axial angle of described pin hole and the rotating shaft of 42CrMo alloy is 15 °-30 °, pin hole quantity is that 2-4 is individual and uniform, pin hole diameter is 2-3mm, and pin hole penetrates the rotating shaft of 42CrMo alloy and enters the inner 3-5mm of titanium aluminium turbine.
For avoiding producing stress raisers at turbine wheel back of the body place, improve titanium aluminium turbine intensity, prevent the faults such as titanium aluminium turbine disperses, the back of the body taken turns by preferred titanium aluminium turbine 2 has 180 ° of knuckles with screw thread transition portion, effectively can overcome the defect that titanium aluminium turbine toughness is poor, improve the intensity of screw thread.
For improving join strength and connection reliability further, at the bottom of the tooth of preferred titanium aluminium turbine 2 outside thread and 42CrMo alloy rotating shaft 1 internal thread and crest all have circular arc, and radius of rounded root is less than radius of rounded crest.
A thread interference locking connecting means for titanium aluminium rotating shaft of supercharger turbine, is characterized in that: comprise the following steps:
The determination of a, titanium aluminium turbine and 42CrMo alloy rotating shaft interference thread linkage structure parameter and pin lock locking structure parameter: titanium aluminium turbine adopts outside thread, the rotating shaft of 42CrMo alloy adopts internal thread, screw connection point interference fit, from turbine end, thread rotary orientation is identical with the sense of rotation of pressurized machine rotating shaft, have 180 ° of knuckles between titanium aluminium turbine back of the body dish and screw thread, at the bottom of internal thread and externally threaded tooth and crest all have circular arc, and radius of rounded root is less than radius of rounded crest;
B, titanium-aluminum alloy turbine outside thread, location end face, wheel carry on the back the processing with screw thread 180 ° of transition arcs;
C, 42CrMo alloy rotating shaft internal thread and the processing of locating end face;
D, titanium-aluminum alloy turbine and 42CrMo alloy rotating shaft interference thread assemble: take the measure of heating 42CrMo alloy shaft thread connecting sleeve, screwed the assembling realizing titanium aluminium turbine and 42CrMo rotating shaft by screw thread;
E, titanium aluminium turbine shaft safetied pin hole machined: to completing the titanium aluminium turbine shaft of interference thread assembling in B end face processing spring bolt nail, pin hole and the axial angle of turbine shaft are 15 °-30 °, the quantity in hole is that 2-4 is individual and uniform, the diameter in hole is 2-3mm, pin hole is blind hole, and hole depth will ensure to penetrate the rotating shaft of 42CrMo alloy and enter the inner 3-5mm of titanium-aluminum alloy turbine;
The assembling of f, elastic cylindrical pin and titanium aluminium turbine shaft: loaded in the spring bolt nail of titanium aluminium turbine shaft by the elastic cylindrical pin matched with pin hole, elastic cylindrical pin does not exceed B end face;
G, carry out the processing at other positions to completing the titanium aluminium rotating shaft of supercharger turbine that thread interference locking connects.
The invention has the beneficial effects as follows:
The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine, can realize being reliably connected lastingly between titanium aluminium turbine with the rotating shaft of 42CrMo alloy; Both effectively can ensure the join strength of turbine and rotating shaft, and occur when preventing turbine shaft work to be heated loosening; Reduce the difficulty of processing of titanium aluminium turbine connecting thread simultaneously; Linkage structure is simple, and join strength is reliable lastingly, can meet the through engineering approaches application needs of titanium aluminium rotating shaft of supercharger turbine.
Accompanying drawing explanation
Fig. 1 is the thread interference locking linkage structure schematic diagram of titanium aluminium turbine shaft.
Fig. 2 is internal thread and externally threaded structure partial enlarged view.
142CrMo alloy rotating shaft 2 titanium aluminium turbine 3 elastic cylinder safetied pin
Embodiment
A thread interference locking connecting means for titanium aluminium rotating shaft of supercharger turbine, comprises the following steps:
A, the thread interference locking linkage structure design of titanium aluminium rotating shaft of supercharger turbine: determine titanium-aluminum alloy turbine and 42CrMo alloy rotating shaft interference thread linkage structure parameter and pin lock locking structure parameter, titanium-aluminum alloy turbine adopts outside thread, the rotating shaft of 42CrMo alloy adopts internal thread, screw connection point has certain magnitude of interference, positioned by A end face, from turbine end, thread rotary orientation is identical with the sense of rotation of pressurized machine rotating shaft, 180 ° of knuckles are had between titanium aluminium turbine back of the body dish and screw thread, at the bottom of internal thread and externally threaded tooth and crest all have circular arc, and radius of rounded root is less than radius of rounded crest, as depicted in figs. 1 and 2, such as, when titanium aluminium turbine diameter is Φ 95mm, bearing support turbine end shaft hole diameter is Φ 30mm, when viewed from turbine end, pressurized machine sense of rotation is left-handed, the titanium aluminium turbine thread interference dimensional parameters that is connected is M16 × 1-p6p6-LH, shaft thread interference fit Conncetion cimension parameter is M16 × 1-H7H7-LH, reach is 12mm, the perpendicularity of titanium aluminium turbine and 42CrMo rotating shaft counterface A and axis is less than 0.05, 180 ° of knuckles between titanium aluminium turbine back of the body dish and screw thread are R3, at the bottom of titanium aluminium turbine outside thread and the externally threaded tooth of rotating shaft and crest circular arc be respectively R0.3 and R0.5, crest all has circular arc pin hole and the axial angle of turbine shaft to be 30 °, pin hole quantity be 3 uniform, bore dia is 2mm, pin hole depth is 6mm,
B, titanium-aluminum alloy turbine outside thread, the wheel back of the body with screw thread 180 ° of transition arcs, locate end face and process: the dimensional parameters determined according to step a, to the screw connection point of titanium aluminium turbine, take turns and carry on the back and screw thread 180 ° of transition arcs, locate end face A and process;
C, 42CrMo alloy rotating shaft internal thread and the processing of locating end face: the parameters of structural dimension determined according to step a, process with location end face A the screw connection point of 42CrMo rotating shaft;
D, titanium-aluminum alloy turbine and 42CrMo alloy rotating shaft interference thread assemble: take, to the technical measures of 42CrMo alloy shaft thread connecting sleeve heating, to screw the interference thread realizing titanium aluminium turbine and 42CrMo rotating shaft assemble by screw thread;
E, titanium aluminium turbine shaft safetied pin hole machined: the parameters of structural dimension determined according to step a, to completing the titanium aluminium turbine shaft of interference thread assembling in B end face processing spring bolt nail;
The assembling of f, elastic cylindrical pin and titanium aluminium turbine shaft: choose suitable elastic cylindrical pin according to the diameter of spring bolt nail and the degree of depth, the elastic cylindrical pin matched with pin hole is loaded in the spring bolt nail of titanium aluminium turbine shaft, ensures that elastic cylindrical pin does not exceed B end face;
The processing at g, other positions of titanium aluminium turbine shaft: according to the structural parameter of titanium aluminium turbine shaft, carries out the processing at other positions to the titanium aluminium rotating shaft of supercharger turbine completing thread interference locking connection.
For turbine diameter be Φ 95mm, bearing support turbine end shaft hole diameter be Φ 30mm, from pressurized machine sense of rotation viewed from turbine end be left-handed turbosupercharger, preferred thread interference locking linkage structure is: titanium aluminium turbine outside thread adopts M16 × 1-p6p6-LH, 42CrMo alloy rotating shaft internal thread adopts M16 × 1-H7H7-LH, titanium aluminium turbine outside thread and 42CrMo alloy rotating shaft internal thread length are 12mm, and the counterface of titanium aluminium turbine and the rotating shaft of 42CrMo alloy and the perpendicularity of axis are less than 0.05; 180 ° of knuckles between titanium aluminium turbine back of the body dish and screw thread are R3; At the bottom of the tooth of titanium aluminium turbine outside thread and 42CrMo alloy rotating shaft internal thread and crest circular arc be respectively R0.3 and R0.5; The axial angle of circular arc pin hole and turbine shaft is 30 °, pin hole quantity be 3 uniform, bore dia is 2mm, and pin hole depth is 6mm.
Claims (1)
1. the thread interference locking linkage structure of a titanium aluminium rotating shaft of supercharger turbine, comprise titanium aluminium turbine (2), 42CrMo alloy rotating shaft (1) and elastic cylinder safetied pin (3), it is characterized in that: there is outside thread described titanium aluminium turbine (2) end, from external thread rotary viewed from turbine end to identical with turbine wheel rotation direction; There is the internal thread with titanium aluminium turbine (2) end outside thread interference fit described 42CrMo alloy rotating shaft (1) end; The matching part of described titanium aluminium turbine (2) and 42CrMo alloy rotating shaft (1) has the pin hole assembled for the tight pin of elasticity cylinder lock (3), and pin hole penetrates 42CrMo alloy rotating shaft (1) and enters titanium aluminium turbine (2) inner 3-5mm; The wheel back of the body of titanium aluminium turbine (2) has 180 ° of knuckles with screw thread transition portion; These 180 ° of knuckles are R3; At the bottom of the tooth of titanium aluminium turbine (2) outside thread and 42CrMo alloy rotating shaft (1) internal thread and crest all have circular arc, and radius of rounded root is less than radius of rounded crest; At the bottom of the tooth of titanium aluminium turbine outside thread and 42CrMo alloy rotating shaft internal thread and crest circular arc be respectively R0.3 and R0.5; Titanium aluminium turbine outside thread adopts M16 × 1-p6p6-LH, 42CrMo alloy rotating shaft internal thread adopts M16 × 1-H7H7-LH, titanium aluminium turbine outside thread and 42CrMo alloy rotating shaft internal thread length are 12mm, and the counterface of titanium aluminium turbine and the rotating shaft of 42CrMo alloy and the perpendicularity of axis are less than 0.05; The axial angle of pin hole and turbine shaft is 30 °, pin hole quantity be 3 uniform, pin hole diameter is 2mm, and pin hole depth is 6mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384372.4A CN103438058B (en) | 2013-08-28 | 2013-08-28 | The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine |
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|---|---|---|---|
| CN201310384372.4A CN103438058B (en) | 2013-08-28 | 2013-08-28 | The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine |
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| CN103438058A CN103438058A (en) | 2013-12-11 |
| CN103438058B true CN103438058B (en) | 2016-02-24 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846613B (en) * | 2014-02-12 | 2016-06-15 | 中国北方发动机研究所(天津) | The tapered tread method of attachment of booster turbine impeller and rotating shaft and attachment structure |
| US9821410B2 (en) | 2014-09-16 | 2017-11-21 | Honeywell International Inc. | Turbocharger shaft and wheel assembly |
| US10041351B2 (en) | 2014-09-16 | 2018-08-07 | Honeywell International Inc. | Turbocharger shaft and wheel assembly |
| US10024166B2 (en) | 2014-09-16 | 2018-07-17 | Honeywell International Inc. | Turbocharger shaft and wheel assembly |
| US9827631B2 (en) | 2014-09-16 | 2017-11-28 | Honeywell International Inc. | Turbocharger shaft and wheel assembly |
| CN105666144B (en) * | 2016-03-24 | 2018-03-13 | 中国北方发动机研究所(天津) | Combined booster turbine shaft and its method for processing and assembling |
| CN106002284B (en) * | 2016-06-29 | 2018-05-22 | 中国北方发动机研究所(天津) | A kind of vehicle supercharger turbine pivot structure and its method for processing and assembling |
| CN110131033A (en) * | 2019-04-02 | 2019-08-16 | 中国北方发动机研究所(天津) | A kind of turbine interference connection stress smoothly transits structure |
| CN114135339B (en) * | 2021-11-26 | 2023-04-25 | 中国北方发动机研究所(天津) | Contour profile connecting method for turbine impeller and rotating shaft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3243213A (en) * | 1962-07-20 | 1966-03-29 | Austin Hoy & Co Ltd | Coupling device |
| CN1748931A (en) * | 2005-09-29 | 2006-03-22 | 哈尔滨工业大学 | High-strength connection method between TiAl-based alloy turbocharger and steel shaft |
| CN1869407A (en) * | 2004-12-14 | 2006-11-29 | 霍尼韦尔国际公司 | Compressor wheel |
| CN101535600A (en) * | 2006-11-29 | 2009-09-16 | 博格华纳公司 | Turbocharger |
| CN102211249A (en) * | 2011-05-26 | 2011-10-12 | 洛阳双瑞精铸钛业有限公司 | Method for connecting titanium-aluminum alloy turbine with 42CrMo steel shaft |
| CN103244194A (en) * | 2013-04-22 | 2013-08-14 | 中国北方发动机研究所(天津) | Threaded interference fitting method and threaded interference fitting structure for turbine impeller and rotary shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61229902A (en) * | 1985-04-04 | 1986-10-14 | Nissan Motor Co Ltd | Connecting structure of ceramic turbine rotor and metal shaft |
-
2013
- 2013-08-28 CN CN201310384372.4A patent/CN103438058B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3243213A (en) * | 1962-07-20 | 1966-03-29 | Austin Hoy & Co Ltd | Coupling device |
| CN1869407A (en) * | 2004-12-14 | 2006-11-29 | 霍尼韦尔国际公司 | Compressor wheel |
| CN1748931A (en) * | 2005-09-29 | 2006-03-22 | 哈尔滨工业大学 | High-strength connection method between TiAl-based alloy turbocharger and steel shaft |
| CN101535600A (en) * | 2006-11-29 | 2009-09-16 | 博格华纳公司 | Turbocharger |
| CN102211249A (en) * | 2011-05-26 | 2011-10-12 | 洛阳双瑞精铸钛业有限公司 | Method for connecting titanium-aluminum alloy turbine with 42CrMo steel shaft |
| CN103244194A (en) * | 2013-04-22 | 2013-08-14 | 中国北方发动机研究所(天津) | Threaded interference fitting method and threaded interference fitting structure for turbine impeller and rotary shaft |
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| CN103438058A (en) | 2013-12-11 |
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